package com.zb.filter;

import org.springframework.cloud.gateway.filter.GatewayFilterChain;
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.core.Ordered;
import org.springframework.http.HttpStatus;
import org.springframework.http.server.reactive.ServerHttpRequest;
import org.springframework.http.server.reactive.ServerHttpResponse;
import org.springframework.stereotype.Component;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Mono;

@Component
public class PowerFilter implements GlobalFilter, Ordered {





    @Override
    public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
        ServerHttpRequest request = exchange.getRequest();
        //获取请求路径
        ServerHttpResponse response = exchange.getResponse();
        String url= request.getURI().getPath().toString();
        System.out.println("=====>"+url);
        if (url.equals("/api/myauth/login")){
            System.out.println("==============>放行接口");
            return chain.filter(exchange);
        }
        String token=request.getHeaders().getFirst("token");
        if (token==null|| "".equals(token)){
            System.out.println("==============>没有token");
            response.setStatusCode(HttpStatus.UNAUTHORIZED);
            return response.setComplete();
        }
        System.out.println("==============>有token");
        //将token包装成认证框架需要使用的方式
        request.mutate().header("Authorization", "Bearer " + token);
        //判断token是否有效
        return chain.filter(exchange);


    }

    @Override
    public int getOrder() {
        return 0;
    }
}
